1HQ1

STRUCTURAL AND ENERGETIC ANALYSIS OF RNA RECOGNITION BY A UNIVERSALLY CONSERVED PROTEIN FROM THE SIGNAL RECOGNITION PARTICLE

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	EVAPORATION	5.6	293	Na-MES, isopropanol, potassium chloride, magnesium chloride, MPD, pH 5.6, EVAPORATION, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.12	60.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 136.555	α = 90
b = 78.337	β = 96.24
c = 32.872	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD			1999-05-20	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2	1.039177, 1.039988, 0.999	ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.52	40	98.2	0.07	0.069	35.3	10.8	1178959	51967			19.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.52	1.57	89.3		0.49	1.6	2.5	4750

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R	1DUL	1.52	10	1178959	51967	2031	88.8	0.157	0.151	0.151	0.199	RANDOM

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
		1952

RMS Deviations
Key	Refinement Restraint Deviation
s_approx_iso_adps	0.1
s_non_zero_chiral_vol	0.06
s_similar_adp_cmpnt	0.05
s_zero_chiral_vol	0.04
s_angle_d	0.03
s_from_restr_planes	0.023
s_bond_d	0.01
s_anti_bump_dis_restr	0.01
s_similar_dist
s_rigid_bond_adp_cmpnt

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	606
Nucleic Acid Atoms	1054
Solvent Atoms	287
Heterogen Atoms	7

Software

Software
Software Name	Purpose
AMoRE	phasing
SHELXL-97	refinement
DENZO	data reduction
SCALEPACK	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.